Fluid dispenser with support therefor



Se t. 20, 1966 1... E. MOEN FLUID DISPENSER WITH SUPPORT THEREFOR 2 Sheets-Sheet 1 Filed Oct. 50, 1964 Q wxmm R NW Sept. 20, 1966 L. E. MOEN 3,273,757

FLUID DISPENSER WITH SUPPORT THEREFOR Filed Oct. 50, 1964 2 Sheets-Sheet 2 INVENTOR. Ai /V460 5 MOE/V driven/5;!-

United States Patent ()fiice Patented Sept. 20, 1966 3,273,757 FLUID DISPENSER WITH SUPPORT THEREFQR Lenard E. Moen, 422 Ocean View Ave, Whittier, Calif. Filed Oct. 30, 1964-, Ser. No. 407,834 11 Claims. (Cl. 222-185) This invention relates generally to dispensers and more particularly to improvements in dispensers for fluids.

The dispenser of this invention is susceptible of a wide range of application and is capable of dispensing various types of fluids. However, the dispenser has primary utility in dispensing glue and other liquids which dry or set rapidly upon contact with the air.

Glue dispensers, or glue applicators as they are commonly called, are used in many different machines, one example of which are machines for making cardboard shipping containers, such as are employed to ship canned good and the like from processing plants to retail outlets. In machines of this class, preformed cardboard blanks are fed through one or more forming stations, wherein each blank is erected to form a container, and past one or more glue applicators, or glue heads as they are sometimes referred to, which apply glue to certain parts of each blank to retain the blank in its erected condition. Generally, the blanks are thus erected and sealed in a bottom sealing machine from which the blanks emerge as partially completed containers having open tops through which the containers are filled with the articles to be shipped. After filling, the containers are fed through a top sealing machine which closes and seals the top flaps of each container.

It is common practice in container erecting and sealing machines of this kind to utilize both hot and cold glue applicators. The cold glue applicators dispense glue which remains in a liquid state at room temperature so long as the glue is shielded from contact with air. This glue sets more slowly than hot glue but produces a superior bond. The hot glue applicators dispense glue which is in a solid state at normal room temperature and must be heated to place the glue in the proper liquid condition for dispensing. Compression of a hot glue joint disperses the glue causing instantaneous loss of heat and setting of the glue. In container erecting and sealing machines of the kind under discussion, the hot glue provides a fast initial tack or seal which holds each joint together until the cold glue has sufficient time to set and provide a superior bond.

The existing cold glue applicators are deficient in several respects. All existing cold glue applicators, for example,

comprise a body having a glue inlet for connection to a source 'of cold glue under pressure, a passage leading from the inlet to an outlet port or orifice through which the glue is dispensed to the Work piece, and a valve mechanism for controlling glue flow through the passage. Most glue applicators are installed in a generally upright position. Accordingly there is a tendency for the glue which remains in the dispensing passage, downstream of the valve, to drain from the applicator while the valve is closed. In some existing cold glue applicators, the valve is located well upstream in the dispensing passage, with the result that a substantial length of the passage is located downstream of the valve. Accordingly, there is a substantial volume of glue contained in the dispensing passage, downstream of the valve, which can drain from the applicator when the valve is closed. This drainage of glue from the applicator when the valve is closed is highly undesirable and creates a problem of keeping the machine in the proper condition of cleanliness to avoid smearing of the container blanks as the latter travel past the applicator. Another disadvantage of the upstream location of the valve in the prior cold glue applicators of the kind under discussion resided in the fact that a substantial length of the dispensing passage, that is the portion of the passage downstream of the valve, is exposed to air. As a result, there is a tendency for the glue in the passage to set, and thereby block the passage, if the glue applicator remains inoperative for any period of time. When this occurs, the glue applicator must be removed and cleaned to reopen the passage, which is a tedious and time consuming operation, particularly when it is considered that a container forming machine of the kind discussed earlier may embody on the order of ten to twelve cold glue applicators.

In other prior cold glue applicators, the valve mechanism for controlling glue flow from the applicator to the work piece is located externally of the applicator housing. This type of external valving is often jammed or frozen by setting of the glue about the mechanism. These cold glue applicators, therefore, require frequent cleaning. Moreover, many applicators of this type embody :an external actuator which is contacted by glue emerging from the applicator. Setting of this glue frequently jams or freezes the actuators, thereby requiring frequent cleaning of the applicator.

It is apparent 'ot this point, therefore, that there is a definite need for an improved cold glue applicator. This invention provides such an improved applicator, As mentioned earlier, however, and as it will become apparent from the ensuing description, the improved dispenser of the invention is not limited in usefulness to the dispensing of cold glue.

It is a general object of the present invention, therefore, to provide an improved dispenser for dispensing liquids, particularly liquids such as glue which dry or set rapidly upon contact with air.

A more specific object of the invention is to provide an improved liquid dispenser of the character described wherein the valving is entirely enclosed within the dispenser body, whereby the valve mechanism is immune to jamming or freezing as a consequence of drying or setting of the dispensed liquid.

Another object of the invention is to provide an improved liquid dispenser of the character described wherein the valve operator and valve seat of the valve mechanism is located in close proximity to the outlet or discharge orifice of the dispenser, whereby the dispenser is rendered immune to malfunctioning as a consequence of setting of the dispensed liquid within the dispensing passage, downstream of the valve, and the quantity of liquid which can drain from the dispenser when the valve is closed is materially reduced.

A further object of the invention is to provide an improved liquid dispenser of the character described which is devoid of external actuators or other external mechanism which is prone to freezing or jamming as a consequence of setting of the dispensed liquid.

Yet a further object of the invention is to provide an improved dispenser which utilizes a new and unique mode of valve actuation.

A still further object of the invention is to provide an improved glue applicator.

Other objects, advantages, and features of the invention will become readily apparent as the description pr-oceeds.

Briefly, the objects of the invention are attained by providing a liquid dispenser including a body with an internal chamber for containing the liquid to be dispensed and an actuator barrel extending from the body. This barrel is laterally deflectable relative to the body and is yielda bly retained in a normal position with respect to the body by a mechanism within the body. Extending through the dispenser, from the chamber in the body to a discharge orifice or port in the tip of the actuator barrel, is a passage containing a valve mechanism for controlling liquid flow from the chamber to the discharge port. This valve mechanism is opened, to permit liquid flow from the chamber to the discharge port, in response to deflection of the actuator barrel from its normal position. The valve mechanism is reclosed upon return of the barrel to its normal position. The entire valve mechanism is contained within the body and actuator barrel of the dispenser. As a consequence, the dispensed liquid is prevented from jamming or freezing the mechanism by drydog or setting thereon.

Included in this valve mechanism is a valve seat about the liquid passage through the dispenser and a valve obturator engageable with the seat for closing the passage. This valve seat is located in close proximity to the discharge port of the disepnser. Accordingly, only a relatively short length of the passage exists downstream of the valve seat, whereby the tendency for the dispenser to drip when the valve mechanism is closed is materially reduced or entirely eliminated. In addition, the volume of liquid which can drain from the dispenser when the valve mechanism is closed is substantially reduced. Reducing the length of the dispensing passage, downstream of the valve, also greatly diminishes or entirely eliminates the tendency of the liquid to dry or set in, and thereby block, the downstream portion of the passage.

Two physical embodiments of the invention are disclosed herein for the purpose of illustrating the invention. In one illustrative embodiment, the valve mechanism comprises a valve obturator which is retracted away from its valve seat, to open the dispensing passage, in response to lateral deflection of the actuator barrel from its normal position. In the second illustrative embodiment of the invention, the valve seat is retracted away from the valve obturator, to open the dispensing passage, in response to lateral deflection of the actuator barrel from its normal position.

The invention will now be described in greater detail by reference to the attached drawings wherein:

FIG. 1 is a perspective view of a cold glue applicator according to the invention installed on a container forming machine;

FIG. 2 is an enlarged section taken on line 22 in FIG. 1;

FIG. 3 is a section taken on line 33 in FIG. 2;

FIG. 4 is a section taken on line 44 in FIG. 2;

FIG. 5 is a section taken on line 5-5 in FIG. 2;

FIG. 6 is a fragmentary section similar to FIG. 2 but showing the actuator barrel of the dispenser deflected from its normal position to open the dispenser valving;

FIG. 7 is a perspective view of a modified nozzle tip to be used on the present applicator for applying a wide glue stripe;

FIG. 8 is an enlarged section taken on line 88 in FIG. 7;

FIG. 9 is a longitudinal section through a modified glue applicator according to the invention which has been equipped with a heating coil for dispensing hot glue; and

FIG. 10 is a section taken on line 10-10 in FIG. 9.

Referring now to FIGURE 2 there is illustrated a liquid dispenser 10 according to the invention including a body 12 with a central chamber or bore 14. One end of this bore is threaded at 16 for connection to a conduct 17 FIGURE 1) leading to a source (not shown) of liquid to be dispensed. The opposite end of the bore 14 is restricted by an internal annular shoulder 18 on the body 12. Extending from the dispenser body 12, through the central opening 20 in the annular shoulder 18 of the body, is an actuator barrel 22. The inner end of this actuator, that is the end of the actuator within the body 12 of the dispenser, is enlarged at 24. The outer surface 26 of the actuator barrel enlargement 24 is spherically curved to a radius such that the enlargement has a close slip fit within the body bore 14. The actuator barrel 22 is thereby mounted for universal swivel movement relative to the dispenser body 12. Surrounding the barrel 22, between the body shoulder 18 and the barrel enlargement 24, is an O-ring 28 which prevents leakage of liquid from the body 12 through the clearance space between the body and the actuator barrel.

The outer or tip end of the actuator barrel 22 is internally threaded at 30 to receive a nozzle tip 32 which closes the outer end of the barrel. Extending through the closed end of the tip 32, along the axis of the central passage 34 in the actuator barrel 22, is a dispensing outlet or discharge orifice 36. Surrounding the inner end of this orifice is an annular shoulder 38 mounting a resilient annular valve seat element 40, such as a Teflon washer. The valve seat 40 may be adhesively bonded to or otherwise secured to its supporting shoulder 38. At this point, attention is directed to the fact that the length of the discharge orifice 36, between the valve seat 40 and the outer end of the orifice is relatively short.

Extending axially through the actuator barrel 22 is a valve stem 42. The outer end of this valve stem is enlarged at 44 to have a slip fit within the central bore 46 in the actuator barrel tip insert 32, into which bore the discharge orifice 36 opens. The enlarged valve stem shoulder 44 is axially slotted, as best shown in FIGURE 3, to permit flow of the dispensed liquid past the shoulder.

The inner end of the valve stem 42 extends a distance beyond the inner end of the actuator barrel 22 and is threaded at 48. Threaded on the threaded extremity 48 of the valve stem 42 is an adjusting nut 50 backed up by a lock nut 52. Seating against the adjusting nut 50 is a washer 54. Disposed between the washer 54 and the actuator barrel 22 is a spool 56 which slides in the bore 14 of the dispenser body 12. This spool has a bore 58 through which the threaded end 48 of the valve stem 42 extends and which is substantially larger in diameter than the threaded extremity of the valve stem. Extending into the outer end of the spool 56 is a bore 60 which is made larger in diameter than the bore 58 to define an annular shoulder, or spring seat, 62 about the bore 58. Indicated at 64 is a coil spring which seats at one end against the spring seat 62 and at the opposite end against the nut 66 threaded on the valve stem 42. Spring 64 serves to resiliently retain the obturator of the dispenser v-alve seated when the actuator barrel occupies its normal undeflected position, as explained below.

Disposed within the bore 14 of the dispenser body 12, inwardly of the spool 56, is a .second coil spring 68. The outer end of the spring seats against the adjacent or inner end face of the spool 56, about the washer 54. The opposite end of the spring 68 is designed to seat against the hose coupling which is threaded in the threaded end 16 of the body bore 14. Spring 68, therefore, is affective to urge the spool 56, and thereby the valve stem 42, outwardly, that is to the left in FIGURE 2, relative to the dispenser body 12 and the actuator barrel 22. The adjusting nuts 50 and 66, and the lock nut 52 are so adjusted relative to the valve stem 42 that when the spool 56 and actuator barrel 22 are in coaxial alignment, and the end face 70 of the spool seats flat against the end face 72 of the actuator barrel, a slight clearance exists between the washer 54 and the adjacent or inner end face of the spool, whereby the valve stem spring 64 is affective to urge the valve stem 42 outwardly to a position in which a conical obturator 74 on the outer end of the valve stem seats against the valve seat 40 to close the discharge orifice 36. Spring 68 serves the three-fold function of centering the actuator barrel 22, urging the obturator 74 against its seat 40, and urging the barrel end 26 against the O-ring 28 to form a seal.

Assume now that the actuator barrel 22 is laterally deflected relative to the dispenser body 12. It is apparent that when this occurs, that half of the annular end face 72 of the actuator barrel 22 on the side of the barrel axis toward which the barrel is deflected, is urged against the spool 56, thereby retracting the latter to the right, as viewed in FIGURE 6, in the dispenser body 12. This right-hand or inward retraction of the spool 56 retracts the valve obturator 74 out of engagement with its valve seat 40, thereby opening the discharge orifice 36. When the actuator barrel 22 is released, the spring 68 resiliently urges the actuator back to its coaxial position of FIGURE 2 and the valve obturator 74 back to its closed position of the figure. It is apparent that this unseating of the valve obturator 74 occurs regardless of which direction the actuator barrel 22 is deflected.

When the valve obturator 74 is thus unseated from its valve seat 70, the liquid to be dispensed flows from the body 12, past the spool 56, into the central passage 34 within the actuator barrel 22, and then past the obturator 74 to the discharge orifice as. To enable the liquid to flow past the spool 56, the latter is formed with longitudinally extending slots or passages '76 which open through the inner leftahand face of the spool and which communicate, at their outer ends, with transverse slots or passages 78 opening to the central passage 34 within the actuator barrel 22.

It is desirable in a dispenser of this type, particularly one which is designed primarily for dispensing glue, to minimize the surface area contact between the spool 56 and the wall of the body bore 14 so as to minimize the possibility of the spool becoming frozen in the body as a consequence of setting of the glue in the small clearance spaces between the spool and the body. To this end, the spool 56 is formed with a circumferential groove 80 which defines, at each end of the spool, axially narrow annular shoulders 82 which slidably support the spool in the body. ing surface area of the spool shoulders 82 is relatively small, whereby the tendency for the glue contained in the narrow clearance spaces between these bearing surfaces and the wall of the bore 14 to set is minimized or eliminated.

At this point, certain advantages of the described dispenser will be apparent. Thus, the valve mechanism including the valve obturator 74, its valve seat 40, and the mechanism for retracting the obturator away from its valve seat in response to lateral deflection of the actuator barrel 22, and return of the obturator to engagement with the seat upon release of the barrel, is entirely contained within the body and barrel of the actuator and is thus shielded against contact with air.

FIGURE 1 illustrates the manner in which the dispenser is installed in a container forming machine of the kind discussed earlier for dispensing or applying cold glue to container blanks as they are fed through the machine. In this figure, numeral 100 designates a bed on the machine frame 102 along which the blanks 104 travel in the direction indicated. The dispenser, or cold glue applicator 10 is mounted on the frame 102, over the bed 100, in such manner that the tip 32 of the actuator barrel 22 of the applicator is engaged by each blank as the latter travels past the dispenser. Preferably, the applicator is installed in the inclined position shown so that the longitudinal axis of the applicator is disposed in a plane parallel to the direction of movement of the blanks 104 and inclines in said direction as the axis app-roaches the path of movement of the blanks. Any suitable means may be employed for mounting the applicator in the position shown. In FIGURE 1, the applicator mounting means 106 comprises a supporting ring 103 which slidably receives the body 12 of the applicator and is secured to upstanding bracket arm 112 on the machine frame 102 by a supporting shaft 113 which slides in a collar 113a secured to the bracket. The shaft is fixed in position by a thumb screw 2113b. A thumb screw 114 retains the applicator in fixed position in the supporting ring 108, whereby the axial position of the applicator may be ad- It is apparent that the effective outer bear- I justed to locate the tip of the actuator barrel 22 in the proper position for engagement by each passing blank 104.

As each blank 104 travels past the applicator 10, the leading edge of the blank engages and laterally deflects the actuator barrel 22 in the direction of travel of the blank. The valve obturator '74 in the applicator is thereby retracted away from its seat 40, as explained earlier, to open the discharge port 36 of the applicator, thereby to permit glue to flow from the applicator to the passing blank. A stripe of glue is thus applied to the blank. The valve obturator 74 is subsequently returned to its seat 40, to close the orifice, when the trailing edge of the blank moves out of contact with the actuator barrel 22. It is apparent that since the actuator barrel is laterally deflectable in any direction to open the applicator valve, it is unnecessary to orient the applicator in a particular angular position on its longitudinal axis when inserting the applicator into its supporting ring 108.

Recalling the earlier discussion, it will be appreciated that the glue dispensing application described above and illustrated in FIGURE 1 is intended to be merely illustrative and not limitative in nature since the dispenser may be used for other purposes.

The modified liquid dispenser 200 of the invention illustrated in FIGURES 9 and 10 is similar to the dispenser 10 in that the dispenser 200 has a tubular body 202 and an actuator barrel 204 extending through and beyond an opening 206 in the forward end of the body. Threaded on the forward end of the actuator barrel. is a nozzle tip 208 having a bore 210 communicating with the central passage 214 in the actuator barrel. Leading from the bore 210 through the forward surface of the tip 208 is a discharge port or orifice 21s.

The rear end of the actuator barrel 204 has an external annular shoulder 218 adapted to seat against an annular internal shoulder 220 on the dispenser body 202, about the forward opening 206 therein. Flat engagement of the barrel shoulder 218 with the body shoulder 220 locates the barrel in coaxial alignment with the body.

Fixed within the dispenser body 202, a distance rearwardly of the rear end of the actuator barrel 204, is a transverse wall 222 which is sealed on the body by an O-ring 223. Wall 222 may be fixed to the body 202 in various ways. According to the preferred practice of the invention as shown in the drawing, however, the dispenser body is made in two threadedly joined parts 202a and 202k and the wall 222 is clamped between these parts in the manner shown in the drawings. A corrugated spring sleeve or bellows 224- and a coil spring 225 are interposed between wall 222 and the rear end of the actuator barrel. The ends of bellows 224 are silver soldered or otherwise secured and sealed to the barrel and wall. Bellows 224 serves to seal the actuator barrel 204 to the Wall 222. Spring 225 serves to yieldably retain the actuator shoulder 218 in flat contact with the body shoulder 220. Spring 225 thus yieldably retains the actuator barrel 204 in its normal coaxial position.

The forward opening 206 in the dispenser body 202 is somewhat larger in diameter than the actuator barrel 204. The actuator barrel can thus rotate or deflect later-ally relative to the body in somewhat the same manner as the actuator barrel 22 in the earlier dispenser 10. This lateral deflection of the barrel 204 causes lateral bending or deflection of the bellows 224 and is yieldably resisted by the spring 225. Thus, during lateral deflection of the actuator barrel 204, the edge of the barrel shoulder 218 rocks or fulcrums, as it were, on the body shoulder 220 in such manner that the side of the spring 225 toward which the actuator barrel deflects is axially compressed. The bellows 224, of course, also yieldably resists deflection of the barrel to some extent. Accordingly, when the barrel is released, the bellows and spring coact to return the barrel to its normal coaxial position. It is to be noted that during this deflection of the barrel, the spring 225,

7 and the bellows 224, retain the fulcruming edge of the bar rel shoulder 218 in contact with the body shoulder 220.

The internal wall 222 in the body 202 has an opening 226 communicating the body chamber or bore 202C rearwardly of the wall, with the actuator passage 214. The liquid to be dispensed can thus flow from the body chamher into the actuator passage.

Extending coaxially from the wall 22 through the actuator barrel 204 is a valve stem 228. The rear end of this valve stem extends through the opening 226 in Wall 222 and mounts, rearwardly of the wall, a washer 227a, backed up by adjusting nuts 227b, which is urged against the wall by a spring 1227c. The forward end of the valve stem extends centrally through an annular valve seat 230 clamped between the tip 208 and the forward end of the actuator barrel. The valve stem is smaller in diameter than the central opening through the valve seat so that an annular clearance or flow space exists between the stem and the seat, as shown. On the forward end of the valve stem, forwardly of the valve seat, is a valve obturator 232. The valve stem adjusting nuts 2271) are so adjusted that the obturator 232 is normally retained in seating engagement with the valve seat 230, thereby to close the actuator passage 214. It will be recalled that when the actuator barrel 204 is laterally deflected from its normal coaxial postion, the edge of the barrel shoulder 218 fulcrums on the body shoulder 220. Since this edge of the barrel shoulder is laterally displaced from the longitudinal axis of the barrel and valve stem, the barrel retracts rearwardly slightly relative to the valve stem as it deflects from its normal position. This rearward retraction of the barrel, in turn, retracts the valve seat 230 rearwardly away from the valve obturator 232 to open the dispensing passage 214 in the barrel. Return of the barrel to its normal coaxial position, under the action of the Spring 225, reseats the obturator on its valve seat. Attention is directed to the fact that this operation of the valve mechanism occurs irrespective of the lateral direction in which the actuator barrel is deflected. In other words, in the dispenser under discussion, as in the earlier dispenser, the valve mechanism in the dispenser is opened in response to lateral deflection of the actuator barrel in any direction throughout a full 360 degrees. When the dispenser valve mechanism is thus opened, the liquid to be dispensed flows through the actuator passage 214 to the discharge port 216 in the barrel tip 208.

The modified dispenser Ztltl thus operates in much the same way as the earlier dispenser It). When the dispenser 200 is used as a cold glue applicator, it may be mounted in the same way as the applicator 14} is mounted in FIG- URE 1 so that the applicator barrel 204 is deflected by each blank 104 as the latter travels past the applicator,

thereby to dispense glue to each blank.

The nozzle tips 32 and 208 of the dispensers or glue applicators described above are designed to apply a narrow glue stripe to a work piece. If a wide glue stripe is to be applied, the alternative nozzle tip 300 of FIGS. 7 and 8 may be used On the applicators. Nozzle tip 300 is shown in FIG. 8 to be threaded into the actuator barrel 22 of the glue applicator 10, although it may be designed to fit the actuator barrel 204 on applicator 200. The nozzle tip comprises a wide cross head 302 with a central passage 306 which communicates the barrel passage 34 with a plurality of spaced discharge ports 308 in the wall of the cross head. The glue applicator 10, when equipped with the wide nozzle tip, obviously functions in substantially the same way as described earlier, except that the wide tip applies a wide glue stripe to the work piece 310. After use, the cross head passage 306 may be cleaned by removing cap screws 312 from the ends of the head. Attention is directed to the fact that since the actuator barrel 22 can rotate about its longitudinal axis relative to the applicator body 12, the cross head 302 will automatically align itself parallel to the surface of the work piece engaging the tip. Accordingly, it is unnecessary to a orient the applicator in a particular angular position about its longitudinal axis.

The glue applicators of the invention may be adapted to dispense hot glue by providing the applicators with heating coils. Such a heating coil 4% is shown in FIG. 9, wherein the coil is wrapped about the applicator body 202.

It is apparent, therefore, that the invention herein described and illustrated is fully capable of attaining the several objects and advantages preliminarily set forth.

While certain specific embodiments of the invention have been described and illustrated, these embodiments are intended to be purely illustrative and not limitative of the invention.

What is claimed is:

1. A dispenser comprising:

a rigid-walled body having an internal chamber for containing a liquid to be dispensed and an opening in one end,

a rigid-walled actuator barrel having one end extending into said body through said Opening and pivotally mounted on said body for lateral deflection of said barrel relative to the body,

means sealing said one end of said barrel to said body,

said barrel having a central passage communicating at one end to said chamber and opening at its other end to the exterior of the barrel through a dispensing port in the tip of the barrel,

a valve seat Within said barrel tip about said passage and in close proximity to said port,

a valve including a stem extending from said chamber through said barrel to said barrel tip, whereby said stem has an inner end located in said chamber and an outer end located within said barrel tip, and an obturator on the outer end of said stein within said barrel tip engageable with said valve seat to close said passage,

means pivotally mounting the inner end of said valve stem on said body whereby said valve is adapted to deflect laterally with said barrel, and

means coacting between said body, said barrel, and said valve for yieldably retaining said barrel and valve in a normal angular position relative to said body and said obturator in seating contact with said valve seat when said barrel and valve occupy said normal position and effecting relative axial movement of said barrel and valve to unseat said obturator from said seat in response to lateral deflection of said barrel and valve from said normal position,

valve operating means Within said passage and operatively connected between said barrel and obturator for affecting engagement of said obturator with said seat to close said passage when said barrel occupies a given normal position relative to said body and effecting relative separation of said valve seat and obturator to open said passage in response to lateral deflection of said barrel from said normal position.

2. A dispenser according to claim 1 wherein:

said valve is axially movable relative to said body and barrel into and out of seating engagement with said valve seat in response to lateral deflection of said barrel and valve from said normal position.

3. A dispenser according to claim 1 wherein:

said valve is relatively axially stationary with respect to said body and said barrel is axially movable relative to said body and valve to engage said obturator with said valve seat and disengage the obturator from said valve seat in response to lateral deflection of said barrel and valve from said normal position.

4. A dispenser according to claim 1 including:

mounting means rigidly secured to said body for mounting said body in a fixed position on a supporting structure.

5. A dispenser comprising:

a body having an internal chamber for containing a liquid to be dispensed,

a barrel extending from any pivotally mounted at one end of said body for lateral deflection of said barrel relative to said body,

means sealing said one end of said barrel to said body,

said barrel having a central passage communicating at one end of said chamber and opening at its other end to the exterior of said barrel through a dispensing port in the tip of the barrel,

a valve seat within said barrel about said passage in close proximity to said port,

a valve including a valve stem extending axially through said barrel and a valve obturator on the outer end of said stem engageable with said valve seat,

a spring acting between said body and barrel for yieldably urging the latter to a given normal position relative to said body, and

valve operating means operatively connected between said barrel and the opposite end of said valve stem including a spring for yieldably retaining said valve obturator in contact with said valve seat when said barrel occupies said normal position and eflecting relative separation of said valve seat and valve obturator in response to lateral deflection of said barrel from said normal position.

6. A dispenser comprising:

a body having an internal chamber for containing a liquid to be dispensed,

an actuator barrel extending from and pivotally mounted at one end on said body for lateral deflection of said barrel relative to said body,

means sealing said one end of said barrel to said body,

said barrel having a central passage communicating at one end to said chamber and opening at its other end to the exterior of the barrel through a dispensing port extending through the tip of the barrel,

a valve seat within said barrel tip about the inner end of said port,

a valve stem extending axially from said chamber to said valve seat and including a valve obturator on its outer end and engageable with said valve seat to close said port,

spring means coacting between said body and said valve stem for yieldably urging said obturator against said valve seat, and

means coacting between said one end of said barrel and said other end of said valve stem for retracting the latter away from said valve seat relative to said body and barrel to open said port in response to lateral deflection of said barrel from a given normal position relative to said body.

7. A dispenser according to claim 6 wherein said cocoacting means comprises:

a transverse face on said one end of said barrel within said chamber,

a spool on said other end of said valve stem and seating at one end against said transverse face, and

means connecting said spool to said valve stem, whereby lateral deflection of said barrel rotates said transverse face relative to said spool, thereby to cam said spool and valve stem away from said valve seat.

8. A dispenser according to claim 7 wherein:

said one end of said barrel is swively mounted in said body for lateral deflection in any direction throughout a complete 360 degrees.

9. A dispenser comprising:

a body having an internal chamber for containing a liquid to be dispensed,

an actuator barrel extending from said body through an enlarged opening in the body and having one end disposed within said chamber,

said body having an internal annular shoulder about said opening,

an external annular shoulder on said one end of said barrel engageable with said body shoulder for locat- 1 0 ing said barrel in a given normal position relative to said body,

a wall fixed within said chamber opposite said one end of said barrel,

said wall being sealed about to the wall. of said chamher,

a corrugated spring bellows sealed at one end to said movable wall and at the other end to said one end of said barrel,

there being a fluid passage etxending through said wall, bellows, and barrel and communicating said chamber rearwardly of said wall to the exterior of the barrel through a dispensing port in the tip of the barrel,

a valve seat within said barrel about said passage and in close proximity to the tip of the barrel,

a valve stem extending coaxially through said barrel from said wall to said valve seat and a valve obturator on the outer end of said valve stem between said valve seat and said port,

means for normally retaining said valve obturator in contact with said valve seat, thereby to close said pas sage, and

a spring acting between said barrel and said wall for urging said barrel shoulder into flat contact with said body shoulder, whereby lateral deflection of said barrel from said normal position retracts said valve seat rearwardly out of engagement with said obturator to open said passage.

10. A dispenser comprising:

a body having an internal chamber for containing a liquid to be dispensed,

an actuator barrel extending from said body and pivotally mounted at one end of said body for lateral deflection of said barrel relative to the body,

means sealing said one end of said barrel to said body,

said barrel having a central passage communicating at one end to said chamber and opening at its other end to the exterior of said barrel through a dispensing port in the tip of said barrel,

said barrel tip having an end wall at said other end of said passage and said dispensing port opening coaxially into the barrel through said end wall, whereby said end wall encircles the inner end of said port and defines a valve seat about the inner end of said port,

a valve obturator within said barrel tip engageable with said valve seat to close said passage,

said valve obturator being axially movable in said barrel between a forward position of engagement with said valve seat and a rearward position of retraction from said valve seat, and

valve operating means within said passage and operatively connected between said barrel and obturator for urging said obturator to said forward position when said barrel occupies a given normal position relative to said body and retracting said obturator to said rearward position in response to lateral deflection of said barrel from said normal position.

11. A dispenser comprising:

a body having an internal chamber for containing a liquid to be dispensed,

an actuator barrel extending from said body and pivotally mounted at one end on said body for lateral deflection of said barrel relative to said body,

means sealing said one end of said barrel to said body,

said barrel having a central passage communicating at one end to said chamber and opening .at its other end to the exterior of the barrel through a dispensing port in the tip of the barrel,

said barrel tip having an end wall through which said port opens into the barrel,

a valve seat within said barrel tip about said passage,

said valve seat being located rearwardly of but closely adjacent to said barrel wall,

a valve obturator within said barrel tip forwardly of said valve seat and engageable with said valve seat to close said passage,

said barrel being relatively axially movable relative to said obturator between a forward position wherein 5 said valve seat engages said obturator to close said passage and a rearward position wherein said valve seat is retracted out of engagement with said obturator to open said passage, and

valve operating means within said passage and operatively connected between said barrel and obturator for urging said barrel to said forward position when said barrel occupies a given normal position relative to said body and retracting said barrel rearwardly to said rearward position in response to lateral deflection 15 of said barrel from said normal position.

References Cited by the Examiner UNITED STATES PATENTS Pratt 15580 Johnson 222509 Dilley et a1 222509 Koppelman 222509 Slipikas 222508 X Richards.

Schlicksupp 15581 X Wolcott 222-509 Schlicksupp 251-342 X Barlow et a1 15--581 X Warren 1558O X Bowen.

RAPHAEL M. LUPO, Primary Examiner. 

1. A DISPENSER COMPRISING: A RIGID-WALLED BODY HAVING AN INTERNAL CHAMBER FOR CONTAINING A LIQUID TO BE DISPENSED AND AN OPENING IN ONE END, A RIGID-WALLED ACTUATOR BARREL HAVING ONE END EXTENDING INTO SAID BODY THROUGH SAID OPENING AND PIVOTALLY MOUNTED ON SAID BODY FOR LATERAL DEFLECTION OF SAID BARREL RELATIVE TO THE BODY, MEANS SEALING SAID ONE END OF SAID BARREL TO SAID BODY, SAID BARREL HAVING A CENTRAL PASSAGE COMMUNICATING AT ONE END OF SAID CHAMBER AND OPENING AT ITS OTHER END TO THE EXTERIOR OF THE BARREL THROUGH A DISPENSING PORT IN THE TIP OF THE BARREL, A VALVE SEAT WITHIN SAID BARREL TIP ABOUT SAID PASSAGE AND IN CLOSE PROXIMITY TO SAID PORT, A VALVE INCLUDING A STEM EXTENDING FROM SAID CHAMBER THROUGH SAID BARREL TO SAID BARREL TIP, WHEREBY SAID STEM HAS AN INNER END LOCATED IN SAID CHAMBER AND AN OUTER END LOCATED WITHIN SAID BARREL TIP, AND AN OBTURATOR ON THE OUTER END OF SAID STEM WITHIN SAID BARREL TIP ENGAGEABLE WITH SAID VALVE SEAT TO CLOSE SAID PASSAGE, MEANS PIVOTALLY MOUNTING THE INNER END OF SAID VALVE STEM ON SAID BODY WHEREBY SAID VALVE IS ADAPTED TO DEFLECT LATERALLY WITH SAID BARREL, AND MEANS COACTING BETWEEN SAID BODY, SAID BARREL, AND SAID VALVE FOR YIELDABLY RETAINING SAID BARREL AND VALVE IN A NORMAL ANGULAR POSITION RELATIVE TO SAID BODY AND SAID OBTURATOR IN SEATING CONTACT WITH SAID VALVE SEAT WHEN SAID BARREL AND VALVE OCCUPY SAID NORMAL POSITION AND EFFECTING RELATIVE AXIAL MOVEMENT OF SAID BARREL AND VALVE TO UNSEAT SAID OBTURATOR FROM SAID SEAT IN RESPONSE TO LATERAL DEFLECTION OF SAID BARREL AND VALVE FROM SAID NORMAL POSITION, VALVE OPERATING MEANS WITHIN SAID PASSAGE AND OPERATIVELY CONNECTED BETWEEN SAID BARREL AND OBTURATOR FOR AFFECTING ENGAGEMENT OF SAID OBTURATOR WITH SAID SEAT TO CLOSE SAID PASSAGE WHEN SAID BARREL OCCUPIES A GIVEN NORMAL POSITION RELATIVE TO SAID BODY AND EFFECTING RELATIVE SEPARATION OF SAID VALVE SEAT AND OBTURATOR TO OPEN SAID PASSAGE IN RESPONSE TO LATERAL DEFLECTION OF SAID BARREL FROM SAID NORMAL POSITION. 